UPDATE: 00:00 PST 3/13/11 Japanese Met Agency has upgraded the magnitude of the quake to 9.0 — up from 8.8, their previous estimate. UPDATE: 14:20 PST 3/11/11 Additional graphs and data added to end of post h/t Eco Tretas UPDATE: 4:05 am PST Tsunami Warning continues for much of the US Pacific Coast and British Columbia.…